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The External Vacuum Controller VQP is a precision instrument designed to optimize the control of large vacuum flows in industrial applications. Its primary function is to maintain consistent pressure levels by monitoring and regulating vacuum conditions, ensuring reliable performance in environments requiring precise flow management.
Constructed with no copper-based metallic materials in its flow paths, the VQP ensures compatibility with non-corrosive and non-flammable gases while minimizing potential contamination risks. The seal rubber uses a low-concentration ozone-resistant HNBR or FKM material, providing durability under demanding operational conditions. The body is made from PVF (Polyvinyl formal), offering excellent chemical resistance and long-term stability.
The controller features two valve types—normally closed and normally open—allowing flexibility in system design based on application requirements. It connects via standard vacuum and air supply lines, with the vacuum circuit operating within a range of -100 to 0 kPa and the air supply circuit rated up to 0.7 MPa. The device supports both 24 VDC and 100 VAC input voltages, making it compatible with various industrial power systems.
The VQP operates within a temperature range of 5 to 50 ℃ and humidity range of 35 to 85% RH without risk of freezing or dew condensation. It is rated for operating pressures from -100 kPa to 100 kPa, with proof pressures of 50 kPa (vacuum circuit) and 1.05 MPa (air supply circuit). The device consumes a maximum current of 40 mA under no-load conditions and features response times as low as 10 msec for OFF→ON transitions on 24 VDC, with ON→OFF transitions at up to 15 msec.
The controller is available in two output configurations: NPN open collector (VUS-33R-N2) and PNP open collector (VUS-33R-P2), providing dual switch outputs (SW1, SW2) for integration with different control systems. The device has a fixed 31.5 mm width and is not offered in color variants or size options beyond this standard dimension.
The VQP integrates directly into vacuum control circuits where the negative side of the power supply can be used as a common reference potential. It operates via indirect pilot valve action, enabling reliable switching without direct electrical contact to high-voltage components. The dual-screen digital pressure sensor provides real-time monitoring with main display showing pressure values in red and green, and sub-display indicating preset pressure in orange.
| Specification | Details |
|---|---|
| Fluid medium | Air (JIS B 8392-1: Class 1.2.1 to 2.4.3 compliant), Vacuum | Air, Non-corrosive/Non-flammable gas |
| Operating pressure range | 0.3 to 0.7 MPa |
| Operating vacuum range | -100 to 0 kPa |
| Operating temp. range | 5 to 50 ℃ (No freezing) |
| Operating humidity range | 35 to 85% RH (No dew condensation) |
| Proof pressure (Air supply circuit) | 1.05 MPa |
| Proof pressure (Vacuum circuit) | 0.2 MPa |
| Rated voltage | 24 VDC ±10% | 100 VAC ±10% |
| Operation type | Indirect operation by pilot valve |
| Response time (OFF→ON) (24 VDC) | 10 msec [15 msec] | 10 msec [12 msec] |
| Response time (OFF→ON) (100 VAC) | 10 msec [15 msec] | 10 msec [12 msec] |
| Response time (ON→OFF) (24 VDC) | 15 msec [20 msec] | 10 msec [10 msec] |
| Response time (ON→OFF) (100 VAC) | 21 msec [26 msec] | 16 msec [16 msec] |
| Valve type | Normally closed |
| Element material | PVF (Polyvinyl formal) |
| Rated pressure range | -100 kPa to 100 kPa |
| Proof pressure | 50 kPa |
| Current consumption | 40 mA max. (no-load) |
| Switch output/Output method | NPN open collector output (VUS-33R-N2), PNP open collector output (VUS-33R-P2) |
| Switch output/No. of outputs | 2 outputs (SW1, SW2) |
| Switch output/Max. load current | 125 mA |
| Switch output/Max. supply voltage | 30 VDC (VUS-33R-N2), 24 VDC (VUS-33R-P2) |
| Switch output/Internal voltage drop | 1.5 V max. |
| Response time | Selectable from 50 ms, 250 ms, 500 ms, 1,000 ms, 2,000 ms, 3,000 ms |
| Output short circuit protection | Equipped |
| Ambient temp. range | Operation: 0 to 50 ℃, Storage: -10 to 60 ℃ (No dew condensation or freezing) |
| Ambient humidity range | Operation/Storage: 35 to 85% RH (No dew condensation) |
| Withstand voltage | 1,000 VAC 1 min. (between case and lead wire) |
| Temperature characteristics | ±2% F.S. max. (Reference temperature: 25 ℃, range 0 to +50 ℃) |
| Metric size (mm) | φ10, φ12, φ16 | φ6 |
| Material restriction | No copper-based metallic material is used in flow paths |
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